Dynamic Disks

Please give us an possibility, that we can backup dynamic Disks via the V-Center or ESX Server with GRT Enabled.
We got no alternatives at the moment. And a Backup from 6 TB of data through an Agent via ethernet would take very very long. In addition to this it would be helpfull if we were able to exclude this Dynamic Disks in the VMDK-Backup to have at least one Workaround.